CN1442938A - Method of on line prealarming when temperature of plug in switch cabinet is abnormal - Google Patents
Method of on line prealarming when temperature of plug in switch cabinet is abnormal Download PDFInfo
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- CN1442938A CN1442938A CN 03113178 CN03113178A CN1442938A CN 1442938 A CN1442938 A CN 1442938A CN 03113178 CN03113178 CN 03113178 CN 03113178 A CN03113178 A CN 03113178A CN 1442938 A CN1442938 A CN 1442938A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000002159 abnormal effect Effects 0.000 title abstract description 4
- 238000004364 calculation method Methods 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 claims description 7
- 230000002547 anomalous effect Effects 0.000 claims description 4
- 238000013480 data collection Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 13
- 230000005856 abnormality Effects 0.000 description 7
- 230000000630 rising effect Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 238000007405 data analysis Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000004441 surface measurement Methods 0.000 description 2
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Abstract
An on-line early warning method for abnormal temperature at plug contact in switch cabinet for power supply and distribution uses special temperature data collection device to carry on automatic cycle detection for surface temperature-rise value ruled and selected separately at outer surface of back cover for cable chamber and bus chamber of the switch cabinet, and the temperature-rise data correspond with there places are automatically collected in the operation course of the switch cabinet, then the collected data and related culculation result compared and analysed with basic data and original information by the computer in order to obtain the conclusion that the trend and the absolute value of the temperature vise value data and the related calculation result are normal or not, and the early warning is issued if there is an abnormal value.
Description
Technical field
What the present invention relates to is a kind of solution and device thereof that is used for for the online early warning of panel switches cabinet female connector temperature anomaly, belongs to the technical field of High-Voltage Electrical Appliances.
Background technology
The temperaturing lifting abnormality that the disposable separating plug of major loop coupling part, particularly handcart switch cabinet partly is in operation in the switch cubicle is a kind of fault.For these temperaturing lifting abnormalities are made early warning, people design a lot of ways, and the measure of adopting usually at present has: the visible part at branch bar pastes the variable color card, finds temperaturing lifting abnormality by manual inspection; Adopt contactless temperature measuring equipment, find temperaturing lifting abnormality by manual inspection; Adopt optical fiber temperature measurement on-line device, the temperature information of acquisition testing point again by the data that Computer Processing collected, is realized the temperaturing lifting abnormality early warning.Although these methods can realize certain early warning, but all exist intrinsic deficiency: the method for manual inspection exist workload big, to invisible or not directly survey right position and also can't obtain the data that need, and patrol and examine the data that obtain and need manual record, be not easy data are analyzed and judged; The method of optical fiber temperature measurement on-line need be arranged a large number of transducer, the increasing degree of equipment manufacturing cost can be very big, and the signal of transducer also will do with the primary circuit there be being connected of contact by optical fiber, increased the possibility that insulation fault occurs artificially, and be difficult to carry out maintenance and reparation under the equipment presence in case a certain transducer breaks down.
Summary of the invention
The objective of the invention is to propose a kind of solution and device thereof that is used for for the online early warning of panel switches cabinet female connector temperature anomaly at above-mentioned defective.The heating accident point that needs most supervision in the switch cubicle is the stab contact of handcart switch cabinet.The heating situation of the inner main circuit conductor of switch cubicle can produce corresponding reflection at the corresponding shell outer surface.Under certain ambient temperature conditions, certain corresponding certain major loop caloric value of main circuit current meeting, and certain major loop caloric value correspondence certain temperature rise value of housing outer surface corresponding position.When the inner appearance heating of switch cubicle abnormal conditions, the temperature rise value of housing outer surface corresponding position also " unusually " will occur.Technical solution of the present invention: utilize special-purpose temperature data acquisition device on the outer surface of switch cubicle bus-bar room and cable vault's back shroud respectively the surface temperature rise value of selected regulation point carry out the Automatic Cycle detection, automatically gather the pairing temperature rise value data in these positions in the switch cubicle running, by computer the temperature rise value data of being gathered and relevant result of calculation and basic data and firsthand information are carried out check analysis again, draw whether normal conclusion of the tendency of temperature rise value data and relevant result of calculation and absolute value, the exceptional value and the ANOMALOUS VARIATIONS of temperature rise value data and relevant result of calculation are sent early warning.
Advantage of the present invention is that equipment manufacturing cost is low; Directly contact with nothing between the major loop, can carry out on-line maintenance and reparation to soft, hardware easily; Realize automatic early-warning, can alleviate operations staff's labour intensity, improve the accuracy and the reliability of malfunction monitoring.
Description of drawings
Accompanying drawing is the fundamental diagram of temperature data acquisition device of the present invention.
Among the figure 1 is computer (prior art), the 2nd, and capture card (model: the nudaq acl-8112) the 3rd, temperature sensor (model: wd4-15), the 4th, stab contact, the 5th, switch cubicle.
Embodiment
Embodiment 1,
Utilize special-purpose temperature data acquisition device on the outer surface of switch cubicle 5 bus-bar rooms and cable vault's back shroud respectively the surface temperature rise value of a selected regulation point carry out the Automatic Cycle detection, automatically gather the pairing temperature rise value data in these positions in the switch cubicle running, carry out check analysis by 1 pair of temperature rise value data of being gathered of computer and relevant result of calculation and basic data and firsthand information again, draw whether normal conclusion of the tendency of temperature rise value data and relevant result of calculation and absolute value, the exceptional value and the ANOMALOUS VARIATIONS of temperature rise value data and relevant result of calculation are sent early warning.Described temperaturing lifting abnormality phenomenon is under identical ambient temperature conditions, and the temperature rise value of patrolling and examining that obtains on the regulation point of correspondence on three-phase electricity flow valuve and the back shroud in bus-bar room or the cable vault has certain corresponding relation.If under certain current value, patrol and examine the corresponding temperature rise value that obtains on the regulation point on the back shroud that obtains and exceed " normal value ", the result who at this moment patrols and examines is just indicating and is existing " unusually " in this interval.Unusual is progressive.Because: the rising of temperature can be experienced a process, needs the regular hour, and the length of time is relevant with the thermal capacity of return conductors.Temperature rise test shows that under the normal condition, the time that the interior temperature rise of switch cubicle reaches stationary value generally needs 2 to 4 hours.In case take place unusual, " fault point " has the process of " vicious circle ", show: contact resistance value (or rapidly) As time goes on gradually increases, at this moment the rising of temperature will be depended on normal condition, but fault still needs the regular hour from " generation " to " outburst ", can not be " moment generation ".Can there be certain corresponding relation in the contact heating situation in some intervals in the cabinet and the surface temperature rise value of the corresponding position on the back shroud.The factor that the temperature rise value that obtains is patrolled and examined in influence refers to: with the relevant factor of temperature rise value of the switch cubicle rear surface measurement point that records, these factors mainly contain (ignoring non-major influence factors here): ambient temperature (room temperature); The heating of contact at interval; (the normal heating of contact is relevant with this phase current in loop value); Can ignore in the adjacent cabinet cabinet and generate heat to the influence at this cabinet or this interval with the interior contact of adjacent spaces.The scheme of patrolling and examining be monitor every switch cubicle bus-bar room at interval and in the interval, cable vault separately total heating and back shroud on the temperature value at regulation position to patrol and examine temperature measuring equipment be the temperature data acquisition device, it has computer 1, the input of computer 1/go out end is corresponding to connect the output of capture card 2/go into end, the output of the input jointing temp transducer 3 of capture card 2 is equipped with in temperature sensor 3 is arranged on the housing of switch cubicle 5 of stab contact 4; Patrolling and examining the track that temperature measuring equipment lays after by cabinet and the temperature probe of motion in orbit forms.Track behind the cabinet can be arranged on the cabinet, also can be arranged near on the wall of cabinet.Can consider the concrete operations mode of two kinds of thermometrics: take contact or contactless temperature-measuring device thermometric.Data acquisition is to gather the current value of each phase under the switch cubicle running status and the temperature rise value of corresponding site on the back shroud of switch cubicle bus-bar room and cable vault.Temperature rise value has two collection points (on the bus-bar room cover plate on point, the cable vault's cover plate point).Data analysis is to obtain test data: obtain corresponding record value and corresponding calculated value and corresponding curve data in the temperature rise test process of switch cubicle product.Obtain on-the-spot actual operating data: initial patrol record value in the device context running and typical patrol record value and corresponding calculated value and corresponding curve data.The record value on foundation basis and the corresponding calculated value and the storehouse of response curve data are as the object of contrasting of patrolling and examining data in implementing.The analysis of patrolling and examining data is major loop unit interval caloric values and patrol and examine respective function relation between the temperature rise value in setting up at interval
In the formula: t is the temperature rise value that obtains when patrolling and examining;
K is that (this coefficient is constant not necessarily, also may be a curve for coefficient.Can from
Obtain in the basic data of having set up);
I
A, I
B, I
CBe respectively the current value of monitoring time in interior A, B, C three-phase major loop;
t
0It is reference ambient temperature value (this is worth desirable 40 ℃).
t
nIt is the ambient temperature value when patrolling and examining.Embodiment 2, utilize special-purpose temperature data acquisition device on the outer surface of switch cubicle bus-bar room and cable vault's back shroud respectively the surface temperature rise value of three selected regulation points carry out Automatic Cycle and detect, the position of these three points corresponding respectively three interior at interval stab contacts.Automatically gather the pairing temperature rise value data in these positions in the switch cubicle running, by computer the temperature rise value data of being gathered and relevant result of calculation and basic data and firsthand information are carried out check analysis again, draw whether normal conclusion of the tendency of temperature rise value data and relevant result of calculation and absolute value, the exceptional value and the ANOMALOUS VARIATIONS of temperature rise value data and relevant result of calculation are sent early warning.Described anomaly is under identical ambient temperature conditions, and the temperature rise value of patrolling and examining that obtains on the regulation point of correspondence on three-phase electricity flow valuve and the back shroud in bus-bar room or the cable vault has certain corresponding relation.If under certain current value, patrol and examine the corresponding temperature rise value that obtains on the regulation point on the back shroud that obtains and exceed " normal value ", the result who at this moment patrols and examines is just indicating and is existing " unusually " in this interval.Occurring the remarkable unbalanced situation of three-phase electricity flow valuve in the same interval is very rare abnormality.Do not consider that this class is unusually to patrolling and examining the influence of result and data analysis.Unusual is progressive.Because: the rising of temperature can be experienced a process, needs the regular hour, and the length of time is relevant with the thermal capacity of return conductors.Temperature rise test shows that under the normal condition, the time that the interior temperature rise of switch cubicle reaches stationary value generally needs 2 to 4 hours.In case take place unusual, " fault point " has the process of " vicious circle ", show: contact resistance value (or rapidly) As time goes on gradually increases, at this moment the rising of temperature will be faster than normal condition, but fault still needs the regular hour from " generation " to " outburst ", can not be " moment generation ".Can there be certain corresponding relation in the heating situation of some contacts of a certain phase and the surface temperature rise value of the corresponding position on the back shroud, also can have certain influence to the surface temperature rise value at the adjacent mutually pairing position on the back shroud simultaneously.The factor that the temperature rise value that obtains is patrolled and examined in influence refers to: with the relevant factor of temperature rise value of the switch cubicle rear surface measurement point that records, these factors mainly contain (ignoring non-major influence factors here): ambient temperature (room temperature); The heating of corresponding contact with it at interval; The heating of the contact of (the normal heating of contact is relevant with this phase current in loop value) at interval interior adjacent phase; (adjacently can adopt such definition mutually: the two-phase in addition in the same interval), can ignore in the adjacent cabinet cabinet and in the adjacent spaces contact heating to the influence at this cabinet or this interval.Patrol and examine is to monitor that every switch cubicle bus at interval and interior at interval each temperature at regulation position on the heating of major loop and the back shroud mutually of cable.Patrolling and examining temperature measuring equipment is above-mentioned temperature data acquisition device, patrols and examines the track that temperature measuring equipment lays after by cabinet and the temperature probe of motion in orbit and forms.Track behind the cabinet can be arranged on the cabinet, also can be arranged near on the wall of cabinet.Can consider the concrete operations mode of two kinds of thermometrics: a kind of contact temperature-measuring device thermometric of taking.Another kind is taked contactless temperature-measuring device thermometric.Data acquisition is to gather the current value of each phase under the switch cubicle running status and the temperature rise value at regulation position on the back shroud of switch cubicle bus-bar room and cable vault.Temperature rise value has six collection points (on the bus-bar room cover plate on 3 points, the cable vault's cover plate 3 points).Data analysis is to obtain test data: obtain corresponding record value and corresponding calculated value and corresponding curve data in the temperature rise test process of switch cubicle product.Obtain on-the-spot actual operating data: initial patrol record value in the device context running and typical patrol record value and corresponding calculated value and corresponding curve data.The record value on foundation basis and the corresponding calculated value and the storehouse of response curve data are as the object of contrasting of patrolling and examining data in implementing.Patrol and examine the analysis of data: the functional relation of patrolling and examining on current value and the back shroud between the temperature rise value that obtains is analyzed in phase-splitting correspondingly
T=k ' m * A
A+ (t
0-t
n) in the formula: t is the temperature rise value that obtains when patrolling and examining.
K ' is the relation system between main circuit current position and the temperature rise value that records when patrolling and examining
(this coefficient is to obtain when ambient temperature all is standard value with contiguous phase current values to number
Value, this coefficient is constant not necessarily, also may be a curve.Can be from building
In the upright basic data);
M is that adjacent relatively this is patrolled and examined a little influence coefficient (obtaining of this coefficient is more multiple
Assorted, temporarily do not discuss here)
A
A(or A
B, A
C) be the current value of major loop A phase (B phase, C phase);
t
0It is the reference ambient temperature value.
t
nIt is the ambient temperature value when patrolling and examining.Above-mentioned is that basis is patrolled and examined data that collect and the analysis of being carried out, and can send corresponding fault pre-alarming to the operations staff easily, and the prompting operations staff in time takes measures to check, examines and gets rid of fault, and assurance equipment normally moves.
Claims (3)
1, be used for method for the online early warning of panel switches cabinet female connector temperature anomaly, it is characterized in that utilizing special-purpose temperature data acquisition device on the outer surface of switch cubicle bus-bar room and cable vault's back shroud respectively the surface temperature rise value of selected regulation point carry out the Automatic Cycle detection, automatically gather the pairing temperature rise value data in these positions in the switch cubicle running, by computer the temperature rise value data of being gathered and relevant result of calculation and basic data and firsthand information are carried out check analysis again, draw whether normal conclusion of the tendency of temperature rise value data and relevant result of calculation and absolute value, the exceptional value and the ANOMALOUS VARIATIONS of temperature rise value data and relevant result of calculation are sent early warning.
2, the method that is used for for the online early warning of panel switches cabinet female connector temperature anomaly according to claim 1, it is characterized in that the temperature data acquisition device has computer, the input of computer/go out end is corresponding to connect the output of capture card/go into end, the output of the input jointing temp transducer of capture card is equipped with in temperature sensor is arranged on the housing of switch cubicle of stab contact.
3, the method that is used for for the online early warning of panel switches cabinet female connector temperature anomaly according to claim 1 is characterized in that selected test regulation point is one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03113178 CN1245792C (en) | 2003-04-14 | 2003-04-14 | Method of on line prealarming when temperature of plug in switch cabinet is abnormal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03113178 CN1245792C (en) | 2003-04-14 | 2003-04-14 | Method of on line prealarming when temperature of plug in switch cabinet is abnormal |
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| Publication Number | Publication Date |
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| CN1442938A true CN1442938A (en) | 2003-09-17 |
| CN1245792C CN1245792C (en) | 2006-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03113178 Expired - Fee Related CN1245792C (en) | 2003-04-14 | 2003-04-14 | Method of on line prealarming when temperature of plug in switch cabinet is abnormal |
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| CN (1) | CN1245792C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243285A (en) * | 2011-05-06 | 2011-11-16 | 厦门Abb开关有限公司 | Fault detection apparatus based on temperature and current analyses, and method thereof |
| CN102778626A (en) * | 2012-08-14 | 2012-11-14 | 广东电网公司佛山供电局 | Method and device for detecting overheat faults of GIS (Gas Insulated Switchgear) busbar joints |
| CN102798783A (en) * | 2012-08-14 | 2012-11-28 | 广东电网公司佛山供电局 | Method and system for diagnosing overheat fault of joints of gas insulated switch equipment bus |
| CN104019914A (en) * | 2014-06-03 | 2014-09-03 | 国家电网公司 | Special temperature image alarming system for switch cabinet |
| CN104155012A (en) * | 2014-06-17 | 2014-11-19 | 广东安迪普科技有限公司 | Monitoring system capable of displaying temperature rise of cable head on site |
| CN104568211A (en) * | 2015-01-22 | 2015-04-29 | 常州太平洋电力设备(集团)有限公司 | Switch cabinet contact and busbar connection point temperature rise online monitoring device and working method thereof |
| CN105277872A (en) * | 2014-07-25 | 2016-01-27 | 伊顿电力设备有限公司 | Method and device for detecting electrical connection abnormality of switchgear main circuit |
| CN114093144A (en) * | 2021-10-28 | 2022-02-25 | 许昌许继软件技术有限公司 | Switch cabinet temperature early warning method and system |
| CN114577363A (en) * | 2021-09-18 | 2022-06-03 | 常州亚盾测控技术有限公司 | Bus temperature rise on-line monitoring feedback system |
-
2003
- 2003-04-14 CN CN 03113178 patent/CN1245792C/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243285B (en) * | 2011-05-06 | 2013-09-11 | 厦门Abb开关有限公司 | Fault detection apparatus based on temperature and current analyses, and method thereof |
| CN102243285A (en) * | 2011-05-06 | 2011-11-16 | 厦门Abb开关有限公司 | Fault detection apparatus based on temperature and current analyses, and method thereof |
| CN102798783B (en) * | 2012-08-14 | 2015-05-13 | 广东电网公司佛山供电局 | Method and system for diagnosing overheat fault of joints of gas insulated switch equipment bus |
| CN102778626A (en) * | 2012-08-14 | 2012-11-14 | 广东电网公司佛山供电局 | Method and device for detecting overheat faults of GIS (Gas Insulated Switchgear) busbar joints |
| CN102798783A (en) * | 2012-08-14 | 2012-11-28 | 广东电网公司佛山供电局 | Method and system for diagnosing overheat fault of joints of gas insulated switch equipment bus |
| CN102778626B (en) * | 2012-08-14 | 2015-08-12 | 广东电网公司佛山供电局 | The detection method of GIS busbar joint Superheated steam drier and device |
| CN104019914A (en) * | 2014-06-03 | 2014-09-03 | 国家电网公司 | Special temperature image alarming system for switch cabinet |
| CN104155012A (en) * | 2014-06-17 | 2014-11-19 | 广东安迪普科技有限公司 | Monitoring system capable of displaying temperature rise of cable head on site |
| CN105277872A (en) * | 2014-07-25 | 2016-01-27 | 伊顿电力设备有限公司 | Method and device for detecting electrical connection abnormality of switchgear main circuit |
| WO2016011897A1 (en) * | 2014-07-25 | 2016-01-28 | 伊顿电力设备有限公司 | Method and apparatus for detecting abnormal electrical connection in main circuit of switching device |
| US10073141B2 (en) | 2014-07-25 | 2018-09-11 | Eaton Electrical Equipment Co., Ltd. | Detecting method and apparatus for abnormal electrical connection in main circuit of switchgear |
| CN105277872B (en) * | 2014-07-25 | 2019-09-24 | 伊顿电力设备有限公司 | The electrical connection of switchgear main circuit abnormal detection method and device |
| CN104568211A (en) * | 2015-01-22 | 2015-04-29 | 常州太平洋电力设备(集团)有限公司 | Switch cabinet contact and busbar connection point temperature rise online monitoring device and working method thereof |
| CN114577363A (en) * | 2021-09-18 | 2022-06-03 | 常州亚盾测控技术有限公司 | Bus temperature rise on-line monitoring feedback system |
| CN114577363B (en) * | 2021-09-18 | 2023-08-11 | 常州亚盾测控技术有限公司 | Bus temperature rise on-line monitoring feedback system |
| CN114093144A (en) * | 2021-10-28 | 2022-02-25 | 许昌许继软件技术有限公司 | Switch cabinet temperature early warning method and system |
| CN114093144B (en) * | 2021-10-28 | 2023-09-08 | 许昌许继软件技术有限公司 | Switch cabinet temperature early warning method and system |
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| Publication number | Publication date |
|---|---|
| CN1245792C (en) | 2006-03-15 |
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Assignee: Hunan Yanneng Senyuan Power Equipment Co., Ltd. Assignor: Xi'an Senyuan Electric Co., Ltd. Contract fulfillment period: 2008.12.20 to 2014.12.20 Contract record no.: 2009610000001 Denomination of invention: Method of on line prealarming when temperature of plug in switch cabinet is abnormal Granted publication date: 20060315 License type: exclusive license Record date: 20090327 |
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Assignee: Hunan Yanneng Senyuan Power Equipment Co., Ltd. Assignor: Xi'an Senyuan Electric Co., Ltd. Contract fulfillment period: 2008.12.20 to 2014.12.20 Contract record no.: 2009610000001 Denomination of invention: Method of on line prealarming when temperature of plug in switch cabinet is abnormal Granted publication date: 20060315 License type: exclusive license Record date: 20090327 |
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